can tariff
Verbe régulier : tariff - tariffed- tariffed

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I can tariff
you can tariff
she can tariff
we can tariff
you can tariff
they can tariff 	I can be tariffing
you can be tariffing
she can be tariffing
we can be tariffing
you can be tariffing
they can be tariffing	I can have tariffed
you can have tariffed
she can have tariffed
we can have tariffed
you can have tariffed
they can have tariffed	I can have been tariffing
you can have been tariffing
she can have been tariffing
we can have been tariffing
you can have been tariffing
they can have been tariffing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I can't tariff
you can't tariff
she can't tariff
we can't tariff
you can't tariff
they can't tariff 	I can't be tariffing
you can't be tariffing
she can't be tariffing
we can't be tariffing
you can't be tariffing
they can't be tariffing	I can't have tariffed
you can't have tariffed
she can't have tariffed
we can't have tariffed
you can't have tariffed
they can't have tariffed	I can't have been tariffing
you can't have been tariffing
she can't have been tariffing
we can't have been tariffing
you can't have been tariffing
they can't have been tariffing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can I tariff?
can you tariff?
can she tariff?
can we tariff?
can you tariff?
can they tariff? 	can I be tariffing?
can you be tariffing?
can she be tariffing?
can we be tariffing?
can you be tariffing?
can they be tariffing? 	can I have tariffed?
can you have tariffed?
can she have tariffed?
can we have tariffed?
can you have tariffed?
can they have tariffed? 	can I have been tariffing?
can you have been tariffing?
can she have been tariffing?
can we have been tariffing?
can you have been tariffing?
can they have been tariffing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
can't I tariff?
can't you tariff?
can't she tariff?
can't we tariff?
can't you tariff?
can't they tariff? 	can't I be tariffing?
can't you be tariffing?
can't she be tariffing?
can't we be tariffing?
can't you be tariffing?
can't they be tariffing? 	can't I have tariffed?
can't you have tariffed?
can't she have tariffed?
can't we have tariffed?
can't you have tariffed?
can't they have tariffed? 	can't I have been tariffing?
can't you have been tariffing?
can't she have been tariffing?
can't we have been tariffing?
can't you have been tariffing?
can't they have been tariffing?